Heat absorber of a linear Fresnel heat collection system

Abstract

The invention discloses a heat absorber of a linear Fresnel heat collecting system, which comprises a heat collecting tube, a secondary reflection mirror and a column supporting the heat absorber, and the heat collecting tube is fixed on the lower part connected with the column through a support rod. On the crossbeam, there is also a spring steel sheet between the support rod and the lower crossbeam; the secondary reflectors are respectively connected with a plurality of vertical plates, and the vertical plates are connected with the upper crossbeam fixed on the column, or with the The frame between the columns is connected; the secondary reflector of the present invention is relatively independent in structure from the heat collecting tube, the structure is simple, and the installation and maintenance are relatively convenient; the support method of the heat collecting tube is simple and reliable, which can effectively ensure that the heat collecting tube will not be affected damage; the secondary reflector and the heat collecting tube are installed on the column, and the column is used as the reference, which can effectively ensure the accuracy of the relative position and ensure that the secondary reflector focuses the radiation on the heat collecting tube.

Description

Technical field [0001] The invention belongs to the technical field of solar thermal power generation, and relates to a heat absorber of a linear Fresnel heat collection system. Background technique [0002] Solar thermal power generation technology uses a concentrator to gather solar energy and convert it into heat, and then generates high-temperature and high-pressure steam to drive a steam turbine to generate electricity. Linear Fresnel-type solar concentrating thermal power generation technology is a common form of solar thermal power generation. The primary mirror field composed of multi-faceted linear mirrors converges the sunlight into linear spots, and then uses the receiver to pass the heat transfer fluid. The high temperature generated by the light is absorbed and transferred to the heat exchanger. In the heat exchanger, the heat of the heat transfer fluid is used to heat water to generate steam, and then use the steam to drive a steam turbine to generate power. [0003...

AI Technical Summary

Problems solved by technology

[0006] In order to solve the problems of complex structure and difficult installation and maintenance of existing linear Fresnel heat absorbers, the present invention provides a heat absorber of a linear Fresnel heat collector system, which has a simple structure, is relatively convenient to install and maintain, and can Effectively guarantee the accuracy of the relative position of each component

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